package com.springcloud.controller;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.springcloud.pojo.Dept;
import com.springcloud.service.DeptServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

//提供restful服务
@RestController
public class DeptController {
    @Autowired
    DeptServiceImpl deptService;

    @HystrixCommand(fallbackMethod = "historixGet")    // 只要该方法失败就调用historixGet这个方法
    @GetMapping("/dept/get/{id}")
    public Dept get(@PathVariable("id") Long id){
        Dept dept=deptService.queryById(id);
        if (dept==null){
            throw new RuntimeException("不存在该用户");
        }
        return  dept;
    }

//    备选方法   id可以接收访问的参数
public Dept historixGet(@PathVariable("id") Long id){
   return new Dept()
           .setDeptno(id)
           .setDname("id=>"+id+"没有对应的信息,Null--@Hystrix")
           .setDb_sources("no this database in MYSQL!!");
}


}
